(3-2x)-(x+3)=(x-5)-(-3-x)
3-2x-x-3=x-5+3+x
-3x-3=2x-5
-3x-2x=-5+3
-5x=-2 |:(-5)
x=2/5
===========================
(3-2x)-(x+4)-(2x+5)=(3x-4)-(5x+7)
3-2x-x-4-2x-5=3x-4-5x-7
3-2x-x-2x-5=3x-5x-7
-2-5x=-2x-7
-5x+2x=-7+2
-3x=-5 |:(-3)
x=5/3
x=1 2/3
===========================
3(x-4)-4(2x-7)=2(x+5)
3x-12-8x+28=2x+10
3x-8x-12+28=2x+10
-5x+16=2x+10
-5x-2x=10-16
-7x=-6 |:(-7)
x=6/7
===========================
3(3-x)+2x=8-2(x-1)
9-3x+2x=8-2x+2
9-x=8+2-2x
9-x=10-2x
-x+2x=10-9
x=1
